for Journals by Title or ISSN
for Articles by Keywords
  Subjects -> CHEMISTRY (Total: 849 journals)
    - ANALYTICAL CHEMISTRY (47 journals)
    - CHEMISTRY (603 journals)
    - CRYSTALLOGRAPHY (22 journals)
    - ELECTROCHEMISTRY (26 journals)
    - INORGANIC CHEMISTRY (41 journals)
    - ORGANIC CHEMISTRY (45 journals)
    - PHYSICAL CHEMISTRY (65 journals)


Showing 1 - 0 of 0 Journals sorted alphabetically
Accounts of Chemical Research     Full-text available via subscription   (Followers: 88)
Acta Analytica     Hybrid Journal   (Followers: 7)
Advances in Analytical Chemistry     Open Access   (Followers: 27)
American Journal of Analytical Chemistry     Open Access   (Followers: 31)
Analytica Chimica Acta     Hybrid Journal   (Followers: 38)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 31)
Analytical Chemistry     Full-text available via subscription   (Followers: 221)
Analytical Chemistry Insights     Open Access   (Followers: 22)
Analytical Chemistry Research     Open Access   (Followers: 7)
Analytical Letters     Hybrid Journal   (Followers: 11)
Analytical Spectroscopy Library     Full-text available via subscription   (Followers: 9)
Annual Review of Analytical Chemistry     Full-text available via subscription   (Followers: 9)
Biomonitoring     Open Access   (Followers: 2)
Chinese Journal of Analytical Chemistry     Full-text available via subscription   (Followers: 3)
Combinatorial Chemistry - an Online Journal     Open Access   (Followers: 2)
Comprehensive Analytical Chemistry     Full-text available via subscription   (Followers: 5)
Critical Reviews in Analytical Chemistry     Hybrid Journal   (Followers: 25)
Current Analytical Chemistry     Hybrid Journal   (Followers: 7)
Drug Testing and Analysis     Hybrid Journal   (Followers: 6)
Electroanalysis     Hybrid Journal   (Followers: 5)
Field Analytical Chemistry and Technology     Hybrid Journal   (Followers: 4)
Handbook of Analytical Separations     Full-text available via subscription   (Followers: 1)
Handbook of Thermal Analysis and Calorimetry     Full-text available via subscription  
International Journal of Analytical Chemistry     Open Access   (Followers: 21)
International Journal of Chemical and Analytical Science     Full-text available via subscription   (Followers: 3)
International Journal of Environmental Analytical Chemistry     Hybrid Journal   (Followers: 6)
International Journal of Polymer Analysis and Characterization     Hybrid Journal   (Followers: 6)
Journal of Analytical & Bioanalytical Techniques     Open Access   (Followers: 6)
Journal of Analytical Atomic Spectrometry     Full-text available via subscription   (Followers: 10)
Journal of Analytical Chemistry     Hybrid Journal   (Followers: 19)
Journal of Electroanalytical Chemistry     Hybrid Journal   (Followers: 4)
Journal of Essential Oil Research     Hybrid Journal   (Followers: 2)
Journal of Radioanalytical and Nuclear Chemistry     Hybrid Journal   (Followers: 5)
Journal of Thermal Analysis and Calorimetry     Hybrid Journal   (Followers: 22)
Main Group Metal Chemistry     Hybrid Journal   (Followers: 1)
Microchemical Journal     Hybrid Journal   (Followers: 3)
Nigerian Journal of Chemical Research     Full-text available via subscription  
Phytochemical Analysis     Hybrid Journal   (Followers: 2)
Polish Journal of Chemical Technology     Open Access   (Followers: 1)
Reviews in Analytical Chemistry     Hybrid Journal   (Followers: 9)
Sample Preparation     Open Access  
Surface and Interface Analysis     Hybrid Journal   (Followers: 13)
Techniques and Instrumentation in Analytical Chemistry     Full-text available via subscription   (Followers: 5)
TrAC Trends in Analytical Chemistry     Full-text available via subscription   (Followers: 54)
Trends in Environmental Analytical Chemistry     Hybrid Journal   (Followers: 2)
Vibrational Spectroscopy     Hybrid Journal   (Followers: 11)
World Journal of Analytical Chemistry     Open Access   (Followers: 1)
Journal Cover Journal of Analytical Chemistry
  [SJR: 0.268]   [H-I: 23]   [19 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1608-3199 - ISSN (Online) 1061-9348
   Published by Springer-Verlag Homepage  [2336 journals]
  • Estimation of limits of detection and determination in X-ray fluorescence
           analysis by the dependence of the relative standard deviation on analyte
    • Authors: V. Ya. Borkhodoev
      Pages: 872 - 877
      Abstract: Abstract An experimental dependence of the relative standard deviation on analyte concentration of hyperbolic type, characterizing the precision of quantitative chemical analysis, was used to estimate the limits of detection and determination in the X-ray fluorescence analysis. A method is proposed for the determination of their values using the approximation of the experimental dependence of the relative standard deviation on the analyte concentration by a power function. The choice of the values of the relative standard deviation, being criteria for the estimation of these limits, is substantiated. A concept of the limits of detection and determination of an analytical procedure is formulated, according to which the limit of detection of an analytical procedure is an objective value depending only on the precision of determinations, and the limit of determination of an analytical procedure is a subjective value depending not only on the precision of determinations but also on the requirements to their limiting (admissible) accuracy. The limits of detection and determinations of an analytical procedure found by this approach completely characterize the possibilities of an analytical procedure in determining low concentrations of analytes. The proposed approach can be used for the estimation of the limits of detection and determination of analytical procedures and in other methods of chemical analysis with the hyperbolic dependence of the relative standard deviation on the analyte concentration.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816070054
      Issue No: Vol. 71, No. 9 (2016)
  • Surface-enhanced Raman scattering sensing of trace fenthion coupled with
           stable silver colloids and OH stretching band of water as an internal
    • Authors: Y. J. Teng; W. H. Liu; J. M. Liu; Y. H. Nie; P. Li; C. J. He
      Pages: 891 - 895
      Abstract: Abstract The detection of trace fenthion using surface-enhanced Raman scattering (SERS) was proposed via the OH stretching band of water serving as an internal standard. The adsorption process of fenthion on the silver nanoparticle aggregates was characterized by UV-Visible absorption spectrometry and the optimal adsorption time was about 20 min. The OH stretching band of H2O molecule presented around 3100–3500 cm–1 in SERS spectrum was identified by density functional theory and it was not interfered with other characteristic peaks of fenthion. The linearity was obtained from the concentrations divided by the ratio of the benzene ring stretching area around 1073 cm–1 and the internal standard of OH stretching area from 3100 to 3500 cm–1, while the detection limit was calculated as 0.46 µM. The proposed SERS detection method was used in analyzing lake water sample with the recovery of 94–99%.
      PubDate: 2016-09-01
      DOI: 10.1134/s106193481609015x
      Issue No: Vol. 71, No. 9 (2016)
  • Reactions of palladium(II) and rhodium(III) with pyridylazo-2-naphthol and
           dithizone on PANV–KU-2 and PANV–AV-17 fibrous materials
    • Authors: V. P. Dedkova; O. P. Shvoeva; Ya. I. Simakina; A. A. Grechnikov
      Pages: 896 - 900
      Abstract: Abstract Reactions of palladium(II) and rhodium(III) with dithizone (DT) on polyacrylonitrile fiber filled with an AV-17 anion exchanger (PANV–AV-17) and 1-(2-pyridylazo)-2-naphthol (PAN) immobilized on polyacrylonitrile fiber filled with a KU-2 cation exchanger (PANV–KU-2–PAN) are studied by diffuse reflection spectroscopy. Conditions of rhodium complexation on PANV–KU-2–PAN (ascorbic acid concentration, pH of solution in adsorption, and the duration of heating samples) and palladium complexation with DT after adsorption from a 0.1 M NaCl solution (pH 2) on PANV–AV-17 in the dynamic mode are found. The limits of detection for rhodium and palladium are 10 and 5 ng/mL, respectively. At 640 nm, the calibration graphs are linear in the ranges of palladium and rhodium concentrations 0.008–0.06 µg/mL and 0.02–0.2 µg/mL, respectively. The mutual influence of rhodium and palladium is studied. It is shown that the determination of palladium with DT on a PANV–AV-17 solid phase is not affected by the presence of a 5-fold amount of rhodium, and rhodium can be determined on PANV–KU-2–PAN at 590 nm in the presence of 2-fold amounts of palladium.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090070
      Issue No: Vol. 71, No. 9 (2016)
  • Planar microchromatographic columns for gas chromatography
    • Authors: I. A. Platonov; V. I. Platonov; Yu. I. Arutyunov
      Pages: 907 - 911
      Abstract: Abstract The adsorption and selective properties of aluminum-based planar microcolumns filled with the Carbopack B adsorbent are studied. The effect of geometrical parameters of the columns on their chromatographic properties is considered on an example of the separation of a mixture of light hydrocarbons. The advantages of planar microcolumns compared to conventional packed chromatographic columns are revealed.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090124
      Issue No: Vol. 71, No. 9 (2016)
  • Determination of alkylamines in aqueous media by capillary electrophoresis
    • Authors: M. Ya. Kamentsev; L. N. Moskvin; Yu. Malinina; N. M. Yakimova; I. D. Kuchumova
      Pages: 912 - 916
      Abstract: Abstract A procedure is developed for the determination of organic amines in potable water and wastewater by capillary electrophoresis. A mixed solution of benzimidazole and tartaric acid is selected as a leading electrolyte for indirect photometric detection. The sample was injected hydrodynamically. The procedure was tested on samples of potable water and wastewater. The accuracy of the results was evaluated by the standard addition method. The analytical range is 0.25–5 mg/L. The analysis time is 4–5 min.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090100
      Issue No: Vol. 71, No. 9 (2016)
  • Electrochemical reduction of selenium on a silver electrode and its
           determination in river water
    • Authors: Lai-Hao Wang; Xi-En Shan
      Pages: 917 - 925
      Abstract: Abstract A new, simple, and fast method is described for determining selenium based on a silver wire electrode flow-through voltammetric detector. A comparison was done between the sensitivity of disk silver, mercury-modified glassy carbon, and mercury-modified gold electrodes. The response of the flow-through voltammetric detector was evaluated with respect to each electrode’s operating potential and pH in direct current mode. The limit of detection (3s) for Se(IV) was below 0.01 mg/L. The flow-through system does not need deposition times and the organic matter does not need to be removed before determining selenium in river water.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090161
      Issue No: Vol. 71, No. 9 (2016)
  • Enzyme immunoassay for detection of Sudan I dye and its application to the
           control of foodstuffs
    • Authors: E. A. Zvereva; B. Ts. Zaichik; S. A. Eremin; A. V. Zherdev; B. B. Dzantiev
      Pages: 944 - 948
      Abstract: Abstract Food safety measures should include the control of the illegal use of banned toxic dyes, including Sudan I as one of the most commonly used coloring agents. A procedure was developed for the enzyme immunoassay of Sudan I carried out in the kinetic mode in order to enhance the performance and rapidity of assays. The achieved limit of detection of Sudan I is 0.13 ng/mL, and the detectable concentration range is from 0.24 to 2.32 ng/mL. The assay time is 50 min. The results obtained by enzyme immunoassay and HPLC for food extracts (tomato paste, chili sauce, spices) showed good correlation. Due to high performance, the new procedure holds promise for the screening control of Sudan I in foodstuffs.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090185
      Issue No: Vol. 71, No. 9 (2016)
  • Determination of 2,4-dichlorophenoxyacetic acid in cereals by fluorescence
           polarization immunoassay
    • Authors: A. Yu. Boroduleva; S. A. Eremin
      Pages: 949 - 954
      Abstract: Abstract A fluorescence polarization immunoassay (FPIA) procedure is developed for the determination of 2,4-dichlorophenoxyacetic acid in cereal grains using a Sentry-200 portable device. We synthesized tracers, that is, antigens labeled with fluorescein derivatives, based on two fluorescent compounds and two chlorophenoxyacids. The tracer synthesized from 2,4-dichlorophenoxyacetic acid and 4-aminomethylfluorescein is found to be optimal for the FPIA of 2,4-dichlorophenoxyacetic acid. The limit of detection for 2,4-dichlorophenoxyacetic acid in flour was 40 ng/g; the analytical range is from 80 to 1000 ng/g. The percentage of recovery was 85 ± 7% at the relative standard deviation (RSD) 2–10%.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090045
      Issue No: Vol. 71, No. 9 (2016)
  • Determination of some cathinones, tropane alkaloids, and “pharmaceutical
           narcotics” in urine
    • Authors: A. A. Azaryan; A. Z. Temerdashev; E. V. Svetlichnaya; A. G. Kal’nitskii; I. A. Balabaev
      Pages: 955 - 964
      Abstract: Abstract A procedure is proposed for determining some narcotic and psychoactive substances (cathinones, tropane alkaloids, derivatives of ?-aminobutyric acid) in urine, including sample preparation and the determination of analytes by HPLC coupled with electrospray ionization tandem mass spectrometry. Sample preparation involved acid hydrolysis or the dilution of the sample. The lower limit of quantification is 200 pg/mL; the limit of detection is 100 pg/mL; and the calibration curves are linear in the range 0.2–50 ng/mL. The procedure was tested on real samples provided by the Toxicological Department of the Krasnodar Regional Narcological Dispensary. The high sensitivity of the analytical system ensures its use for the determination of narcotic preparations within a certain time after their intake, which may be of particular importance for forensic examinations.
      PubDate: 2016-09-01
      DOI: 10.1134/s1061934816090021
      Issue No: Vol. 71, No. 9 (2016)
  • Determination of pesticides in environmental materials and food products
           by capillary electrophoresis
    • Authors: D. S. Bol’shakova; V. G. Amelin
      Pages: 965 - 1013
      Abstract: Abstract A survey of electrophoresis methods for the determination of pesticides from different classes in environmental materials and food products is presented. The main sample preparation procedures, the cleaning of extracts, and the use of various versions of capillary electrophoresis are considered.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100026
      Issue No: Vol. 71, No. 10 (2016)
  • On the methodology of creation of novel techniques for quantitative
           chemical analysis
    • Authors: Yu. A. Zolotov
      Pages: 1014 - 1015
      Abstract: Abstract Sources of new analytical techniques, mainly quantitative, are considered. The birth of novel techniques of quantitative analysis is usually associated with the finding and use of characteristics (properties) of an object, specifically related to the component concentration. The success of such a search substantially depends on the possibility of monitoring advances in many branches of science and instrumentation and of their assessment from the viewpoint of suitability and prospects for analysis.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100129
      Issue No: Vol. 71, No. 10 (2016)
  • Problems and optimization of sampling, storage, and sample preparation in
           the determination of the trace element composition of human saliva
    • Authors: S. S. Savinov; A. A. Anisimov; A. I. Drobyshev
      Pages: 1016 - 1021
      Abstract: Abstract Experimental results are reported on the effect of the procedure of sampling, storage conditions, and sample preparation of saliva on the concentrations of trace elements determined by atomic emission digital spectrography of liquid samples with spectrum excitation from their dry residues in an AC arc at a tip of a carbon electrode. Recommendations on the optimization of the stages of sampling, storage, and preparation of saliva samples are given.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816080128
      Issue No: Vol. 71, No. 10 (2016)
  • Optimization of conditions for the determination of the organic matter
           content of waters by reagentless oxithermography and its application to
           the analysis of natural waters
    • Authors: I. V. Rogovaya; B. K. Zuev; T. V. Titova; S. V. Morzhukhina; A. E. Saraeva; V. G. Filonenko
      Pages: 1022 - 1027
      Abstract: Abstract To determine the chemical oxygen demand (COD) of water by oxithermography, we studied a high-temperature reactor with two inputs of the gas flow. Such a design allowed the creation of an internal circuit of the oxygen–inert gas (argon) binary flow in the reactor for the oxidation of organic substances and the determination of COD by the decrease in the concentration of oxygen in the binary mixture. The optimum operation parameters of the instrument, affecting the analytical characteristics of the method, were determined. The detection limit for a water sample of the volume 10 µL was 3.4 mg O/L. It was shown that the oxithermograph and the proposed procedure can be used for the determination of COD in drinking and natural waters of Bryansk oblast. The approach developed has an advantage, consisting in the reagentless rapid determination of the COD of waters without preliminary sample preparation.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100117
      Issue No: Vol. 71, No. 10 (2016)
  • Determination of aliphatic acids in natural waters using distillation and
           solid-phase extraction
    • Authors: V. V. Khasanov; A. I. Makarycheva; Yu. G. Slizhov
      Pages: 1028 - 1032
      Abstract: Abstract A procedure is developed and conditions are optimized for the pretreatment of natural water using distillation with no prefiltration of acidified water in combination with preconcentration by solid-phase extraction (SPE) on a Strata-X polymeric adsorbent followed by derivatization for the determination of trace concentrations of C3–C18 aliphatic carboxylic acids by gas chromatography with mass spectrometric detection. It is shown that, at the distillation stage, 90% of free carboxylic acids of the homologous series are transferred to the distillate, which greatly facilitates the procedure of the analysis of natural water containing impurity particles and humic substances and ensures the achievement of the limit of detection for the analytes about 0.05 μg/L. It is found that, at the SPE stage, the adsorbents based on copolymers of styrene, divinylbenzene, and N-vinylpyrrolidone in plastic cartridges may serve as sources of additional pollution with benzoic, palmitic, and stearic acids in the eluates under investigation.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100051
      Issue No: Vol. 71, No. 10 (2016)
  • Determination of the ionization coefficient of carbon on an example of
           silicate glasses analysis by secondary ion mass spectrometry (SIMS)
    • Authors: V. S. Bronsky; S. N. Shilobreeva
      Pages: 1033 - 1040
      Abstract: Abstract A method is proposed for the quantitative estimation of the carbon ionization coefficient followed by the determination of its concentration in silicate glasses by secondary ion mass spectrometry (SIMS). The method is based on the calculation of the sputtering ratio of carbon from the surface of silicate glasses. The dependence of the ionization coefficient on the NBO/T parameter (ratio of the number of nonbridging oxygen atoms to the number tetrahedrally coordinated silicon and aluminum ions), corresponding to the structure and composition of the matrix, is shown. The dependences obtained are calibration graphs for the determination of the ionization coefficient and for the subsequent quantitative estimation of carbon in a silicate sample for a particular SIMS instrument and experimental conditions.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100038
      Issue No: Vol. 71, No. 10 (2016)
  • Simultaneous determination of aliphatic acids and aldehydes in aqueous
           media by reaction gas chromatography
    • Authors: M. G. Pervova; D. L. Chizhov; V. I. Saloutin
      Pages: 1041 - 1045
      Abstract: Abstract A procedure is developed for the gas chromatographic determination of lower aldehydes as dibutoxyalkanes and carboxylic acids as butyl esters by the reaction with tributyl borate in an aqueous medium. Derivatization conditions were optimized. The procedure was used to determine side products in glyoxal synthesized by the catalytic oxidation of ethylene glycol.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100099
      Issue No: Vol. 71, No. 10 (2016)
  • Influence of modifying cobalt(II) chloride additive on the selectivity of
           stationary phases in gas chromatography
    • Authors: O. V. Rodinkov; G. A. Zhuravleva; L. N. Moskvin
      Pages: 1046 - 1051
      Abstract: Abstract Effect of a modifying cobalt(II) chloride additive on the selectivity of adsorbents and liquid stationary phases used in gas chromatography for the separation of volatile organic substances (VOSs) of different chemical nature is considered. It is found that the specified additive leads to a drastic increase in the retention parameters of oxygen-containing VOSs, first of all, aliphatic alcohols, and relatively weakly affects the retention of other VOSs, including nucleophilic nitrogen-containing compounds. In particular, the addition of cobalt chloride to Carbowax increases the retention parameters of methanol and ethanol and reduces the corresponding parameters for analytes from the other VOS classes.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100105
      Issue No: Vol. 71, No. 10 (2016)
  • Determination of growth hormones (β-agonists) in muscle tissue by HPLC
           with mass spectrometric detection
    • Authors: A. V. Kulikovskii; A. B. Lisitsyn; I. F. Gorlov; M. I. Slozhenkina; S. A. Savchuk
      Pages: 1052 - 1056
      Abstract: Abstract A procedure is developed for determining 11 β-agonists, that is, hormonal growth promoters for farm animals, using HPLC with mass spectrometric detection. The procedure includes the enzymatic hydrolysis of homogenates of organs and tissues of animals (longissimus muscle, liver, and kidney), precipitation of proteins with perchloric acid, extraction of β-agonists with a mixture of isopropyl alcohol–ethyl acetate (6: 4), purification of the extract by solid phase extraction using a Bond Elut cartridge, HPLC separation in the gradient elution mode, electrospray ionization, and mass spectrometric detection in the multiple reaction monitoring mode. The procedure is certified. The analytical range is 1.0–100.0 μg/kg.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100075
      Issue No: Vol. 71, No. 10 (2016)
  • Electrochemical determination of riboflavin using a synthesized
           ethyl[(methythio)carbonothioyl] glycinate monolayer modified gold
    • Authors: F. Karimian; G. H. Rounaghi; M. Mohadeszadeh
      Pages: 1057 - 1062
      Abstract: Abstract The surface of a gold disk electrode, for the first time, was modified with a self-assembled monolayer of a synthesized compound, ethyl [(methythio)carbonothioyl] glycinate (ECTG), for construction of an electrode sensitive to riboflavin (vitamin B2). The electrochemical properties of the monolayer assembled on the gold disk were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Under the optimized conditions, the voltammetric peak currents resulting from vitamin B2 (VB2) species were linear for VB2 concentrations in the range from 10–6 to 10–2 M. The effect of pH, type of buffer solution and scan rate on the response of the modified electrode was studied. The constructed electrochemical sensor responses very well to VB2 in the presence of most common vitamins. Finally, the performance of the Au–ECTG modified electrode was successfully tested for electrochemical detection of VB2 in a pharmaceutical sample.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816080062
      Issue No: Vol. 71, No. 10 (2016)
  • Development of a toolkit for early precision immunochromatographic
    • Authors: D. V. Krylsky; A. P. Gushchin; S. A. Gushchin; S. V. Dezhurov; O. S. Morenkov; P. P. Gladyshev; A. A. Vasiliev
      Pages: 1063 - 1068
      Abstract: Abstract A device is developed for automated immunochromatographic assay, designed for one-time tests at the place of occurrence of a disease. The device comprises a turntable platform for up to five strips placed simultaneously, a unit for sample collection and microdosing to a test strip, a detection unit, and a microprocessor control system. A manual, semiautomatic, or automatic operation mode may be selected. Colloidal quantum dots with a luminescence peak from the visible to near-infrared spectral region (600–800 nm) are used as fluorescent labels. A UV-LED or a laser at 365–480 nm can be used as an excitation system; the detection device is a spectrometer with an operation range of 500–800 nm, based on a CCD series of TCD1304DG sensors (Toshiba). RFID tags of samples can re read and the analysis results can be sent to an external computer. The device is made in a plastic case for carrying.
      PubDate: 2016-10-01
      DOI: 10.1134/s1061934816100063
      Issue No: Vol. 71, No. 10 (2016)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
Home (Search)
Subjects A-Z
Publishers A-Z
Your IP address:
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2016